<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <dev>
        <form action="/upload" enctype="multipart/form-data" method="post">
        <input type="file" size="30" name="photo" />
        <br>
        <input type="submit" value="上传" class="button-new" style="margin-top:15px;"/>
        </form>
    </dev>

</body>
</html>